Grade 4 multiplication mixed review sheet: 30 problems on two-digit by one-digit multiplication, three-digit by one-digit multiplication, two-digit by two-digit multiplication, multiplying by multiples of 10 and 100.
Three different problem sets — same skill, same layout, fresh numbers.
Solve each problem. Read carefully — the problems change shape as you go.
Using 29 × 5 from this sheet (Set A, problem 1). Each method below reaches the same answer, 145, by a different route; pick the one that makes the most sense to you.
Helps with bigger numbers: split them by place value and multiply the parts.
Step 1Split each number by place value: 29 = 20 + 9; 5 stays as 5.
Step 2Multiply to fill each box.
Step 3Add the boxes: 100 + 45 = 145.
Step 4So 29 × 5 = 145.
Helps you see every piece of a long multiplication before adding them up.
Step 1Split 29 into 20 + 9 and 5 into 5.
Step 2Multiply each part of 5 by each part of 29, starting with the ones.
Step 3Add the partial products: 45 + 100 = 145.
Step 4So 29 × 5 = 145.
Helps you catch place-value slips: round, estimate, then check that the exact answer is close.
Step 1Round each number to its first digit: 29 rounds to 30; 5 stays 5.
Step 2Estimate: 30 × 5 = 150.
Step 3Now work it out exactly: 29 × 5 = 145.
Step 4Compare: 145 is 5 away from the estimate of 150. An answer with a different number of digits from the estimate usually means a place-value slip.
There are 30 multiplication problems here — one page to work, one page of answers to check against — and Sets B and C repeat the layout with different numbers. The numbers run as high as 839. Problems 11 and 21, for instance, are "2 × 50" and "26 × 6". It is written against Common Core 4.NBT.5 — Number & Operations in Base Ten, grade 4.
Grade 4 multiplication means two- and three-digit by one-digit products and two-digit by two-digit multiplication. The skills on the page: two-digit by one-digit multiplication, three-digit by one-digit multiplication, and two-digit by two-digit multiplication. Working the page asks a student to recall the multiplication facts quickly and accurately, without counting up to them. 29 different answers appear across the 30 problems, so a student cannot copy one result down the page.
Mixed review changes the problem shape as the page goes on, so the 30 problems here cover four different skills rather than one procedure repeated; problem 11, "2 × 50" sits next to problems of a different kind. Mixing facts, multiples of ten and larger products on one page keeps a student choosing a method instead of repeating one.
All three sets are produced by the site's deterministic generator from a fixed seed, so they are the same every time the site is built and the answer keys are exact. Where Set A's problem 16 is "786 × 3", Set B's is "7 × 20".
By grade 4 a student should take all 30 multiplication problems in one sitting. If the page takes more than about fifteen minutes, the underlying facts are probably not automatic yet, and that is worth fixing before more multiplication practice piles on. If more than a third of the 30 problems come back wrong, stop and step back a grade in multiplication rather than assigning Set B.
One mistake to watch for
Zeros are lost when multiplying by multiples of ten: 6 × 40 is answered 24 instead of 240. Problem 26 on this grade 4 mixed review page, "97 × 50", is where to look for it.
The fact 6 × 4 is recalled and the ten is forgotten.
Rewrite 6 × 40 as 6 × 4 × 10 for a few days so the ten is a visible factor rather than a decoration.
The same skill in the other formats available at this grade.
The same format one grade down and one grade up — the easier sheet is often the faster fix when this one is not landing.
No paywall and no account — download any set of this grade 4 multiplication mixed review, and the answers for all 30 problems are in the matching key.
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