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
52 − 10 = ______
80 + 20 = ______
70 + 20 = ______
69 + 20 = ______
2 × 10 = ______
8 × 10 = ______
80 + 10 = ______
7 × 10 = ______
34 + 20 = ______
51 + 10 = ______
86 − 10 = ______
63 − 10 = ______
58 + 10 = ______
66 − 10 = ______
68 − 10 = ______
5 × 10 = ______
53 − 10 = ______
52 + 10 = ______
6 × 10 = ______
88 − 10 = ______
