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
60 + 20 = ______
4 × 10 = ______
3 × 10 = ______
78 − 10 = ______
33 + 20 = ______
2 × 10 = ______
63 + 10 = ______
50 − 10 = ______
24 + 10 = ______
69 + 20 = ______
49 + 20 = ______
88 − 10 = ______
18 + 10 = ______
16 + 10 = ______
20 + 10 = ______
28 − 10 = ______
1 × 10 = ______
6 × 10 = ______
46 − 10 = ______
9 × 10 = ______
