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
7 × 10 = ______
57 + 10 = ______
70 + 20 = ______
97 − 10 = ______
5 × 10 = ______
73 − 10 = ______
98 − 10 = ______
41 − 10 = ______
34 + 20 = ______
16 + 10 = ______
24 + 20 = ______
6 × 10 = ______
77 − 10 = ______
3 × 10 = ______
48 − 10 = ______
49 − 10 = ______
2 × 10 = ______
51 + 20 = ______
1 × 10 = ______
75 + 10 = ______
