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
8 × 10 = ______
67 − 10 = ______
14 + 20 = ______
96 − 10 = ______
30 − 10 = ______
98 − 10 = ______
4 × 10 = ______
2 × 10 = ______
7 × 10 = ______
64 − 10 = ______
51 − 10 = ______
22 + 20 = ______
79 + 10 = ______
44 + 20 = ______
52 − 10 = ______
15 + 10 = ______
64 + 10 = ______
25 − 10 = ______
41 + 20 = ______
42 + 20 = ______
