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
29 − 10 = ______
1 × 10 = ______
7 × 10 = ______
3 × 10 = ______
53 + 10 = ______
65 − 10 = ______
49 − 10 = ______
6 × 10 = ______
86 + 20 = ______
9 × 10 = ______
72 − 10 = ______
18 + 10 = ______
53 − 10 = ______
54 + 20 = ______
2 × 10 = ______
88 − 10 = ______
75 + 10 = ______
68 + 20 = ______
88 + 20 = ______
43 − 10 = ______
