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
78 − 10 = ______
6 × 10 = ______
66 + 20 = ______
2 × 10 = ______
32 + 10 = ______
87 + 20 = ______
8 × 10 = ______
21 + 20 = ______
58 + 10 = ______
22 − 10 = ______
49 − 10 = ______
62 − 10 = ______
87 + 10 = ______
21 − 10 = ______
46 + 10 = ______
24 + 10 = ______
55 + 10 = ______
50 + 20 = ______
7 × 10 = ______
85 − 10 = ______
