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
3 × 10 = ______
4 × 10 = ______
88 + 10 = ______
23 + 20 = ______
15 + 10 = ______
73 − 10 = ______
1 × 10 = ______
9 × 10 = ______
14 + 20 = ______
32 − 10 = ______
45 − 10 = ______
19 + 10 = ______
42 − 10 = ______
65 + 10 = ______
43 − 10 = ______
7 × 10 = ______
5 × 10 = ______
74 − 10 = ______
34 + 10 = ______
79 − 10 = ______
