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
98 − 10 = ______
31 + 10 = ______
42 + 10 = ______
53 + 10 = ______
45 + 10 = ______
57 + 20 = ______
53 + 20 = ______
8 × 10 = ______
47 + 20 = ______
40 + 20 = ______
43 − 10 = ______
23 − 10 = ______
68 + 10 = ______
5 × 10 = ______
2 × 10 = ______
86 − 10 = ______
1 × 10 = ______
79 + 10 = ______
60 − 10 = ______
6 × 10 = ______
