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
31 − 10 = ______
9 × 10 = ______
52 + 10 = ______
66 + 10 = ______
56 + 10 = ______
4 × 10 = ______
72 − 10 = ______
39 − 10 = ______
2 × 10 = ______
21 − 10 = ______
27 + 10 = ______
51 + 20 = ______
36 + 10 = ______
42 + 20 = ______
37 + 10 = ______
73 − 10 = ______
23 − 10 = ______
53 + 10 = ______
32 − 10 = ______
12 + 10 = ______
