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
7 × 10 = ______
6 × 10 = ______
32 + 20 = ______
11 + 10 = ______
80 + 10 = ______
74 + 10 = ______
2 × 10 = ______
69 − 10 = ______
3 × 10 = ______
51 − 10 = ______
22 + 20 = ______
22 − 10 = ______
12 + 20 = ______
94 − 10 = ______
53 + 20 = ______
66 + 20 = ______
5 × 10 = ______
42 + 20 = ______
42 − 10 = ______
66 + 10 = ______
