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
47 + 10 = ______
70 + 10 = ______
4 × 10 = ______
98 − 10 = ______
51 + 20 = ______
34 − 10 = ______
53 − 10 = ______
28 − 10 = ______
39 − 10 = ______
8 × 10 = ______
53 + 10 = ______
93 − 10 = ______
79 + 10 = ______
1 × 10 = ______
86 + 10 = ______
57 − 10 = ______
9 × 10 = ______
7 × 10 = ______
34 + 20 = ______
59 − 10 = ______
