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
2 × 10 = ______
75 − 10 = ______
6 × 10 = ______
28 + 20 = ______
23 − 10 = ______
15 + 10 = ______
7 × 10 = ______
45 − 10 = ______
34 + 10 = ______
62 − 10 = ______
66 + 10 = ______
41 + 10 = ______
68 − 10 = ______
40 + 20 = ______
28 + 10 = ______
68 + 10 = ______
88 − 10 = ______
3 × 10 = ______
24 + 10 = ______
32 + 10 = ______
