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
87 − 10 = ______
46 − 10 = ______
32 + 10 = ______
33 + 10 = ______
40 − 10 = ______
62 + 20 = ______
9 × 10 = ______
64 − 10 = ______
86 + 20 = ______
7 × 10 = ______
8 × 10 = ______
1 × 10 = ______
79 − 10 = ______
76 + 10 = ______
6 × 10 = ______
73 − 10 = ______
14 + 20 = ______
4 × 10 = ______
55 − 10 = ______
65 − 10 = ______
