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
90 − 10 = ______
8 × 10 = ______
83 + 20 = ______
68 + 10 = ______
65 − 10 = ______
97 − 10 = ______
1 × 10 = ______
79 − 10 = ______
6 × 10 = ______
40 + 10 = ______
35 − 10 = ______
80 − 10 = ______
88 + 10 = ______
30 + 20 = ______
32 + 10 = ______
4 × 10 = ______
2 × 10 = ______
75 + 20 = ______
21 − 10 = ______
76 − 10 = ______
