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
85 − 10 = ______
6 × 10 = ______
2 × 10 = ______
96 − 10 = ______
79 + 10 = ______
70 − 10 = ______
77 − 10 = ______
64 − 10 = ______
39 + 20 = ______
88 + 10 = ______
74 + 20 = ______
79 + 20 = ______
49 − 10 = ______
51 + 20 = ______
86 + 10 = ______
27 + 20 = ______
30 + 20 = ______
40 + 20 = ______
75 + 10 = ______
7 × 10 = ______
