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
32 + 20 = ______
35 − 10 = ______
25 + 10 = ______
89 − 10 = ______
20 + 10 = ______
40 + 10 = ______
8 × 10 = ______
69 + 10 = ______
78 + 20 = ______
66 − 10 = ______
1 × 10 = ______
74 + 10 = ______
6 × 10 = ______
25 + 20 = ______
58 + 10 = ______
3 × 10 = ______
7 × 10 = ______
37 + 20 = ______
14 + 10 = ______
2 × 10 = ______
