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 = ______
83 − 10 = ______
40 + 10 = ______
7 × 10 = ______
57 − 10 = ______
49 + 20 = ______
2 × 10 = ______
5 × 10 = ______
23 − 10 = ______
88 + 20 = ______
57 + 10 = ______
38 − 10 = ______
69 + 20 = ______
32 + 20 = ______
80 + 10 = ______
6 × 10 = ______
65 − 10 = ______
36 − 10 = ______
41 − 10 = ______
39 + 10 = ______
