Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
64 + 20 = ______
67 − 10 = ______
2 × 10 = ______
12 + 20 = ______
56 + 10 = ______
59 + 20 = ______
23 + 20 = ______
63 + 10 = ______
28 + 10 = ______
4 × 10 = ______
18 + 10 = ______
49 + 10 = ______
1 × 10 = ______
55 + 10 = ______
9 × 10 = ______
22 − 10 = ______
8 × 10 = ______
30 + 20 = ______
68 − 10 = ______
6 × 10 = ______
